| Message ID | 20190712041255.29219-1-sean.j.christopherson@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [for_v21] x86/sgx: Return error from driver init if launch control isn't supported | expand |
diff --git a/arch/x86/kernel/cpu/sgx/driver/main.c b/arch/x86/kernel/cpu/sgx/driver/main.c index 2d1943c13879..f4a2ef26fcbf 100644 --- a/arch/x86/kernel/cpu/sgx/driver/main.c +++ b/arch/x86/kernel/cpu/sgx/driver/main.c @@ -195,7 +195,7 @@ int sgx_drv_init(void) if (!boot_cpu_has(X86_FEATURE_SGX_LC)) { pr_info("sgx: The public key MSRs are not writable\n"); - return 0; + return -ENODEV; } ret = bus_register(&sgx_bus_type);
Return an error when the driver fails to load, otherwise the core SGX code will unnecessarily consume resources, e.g. tracking EPC and running its kthread. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> --- arch/x86/kernel/cpu/sgx/driver/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)